Biology 33
161. Monocotyledonous plants show which of the following feature?
(A) Flowers are trimerous
(B) Perennial growth
(C) Leaf shows reticulate venation
(D) Tap root system
(A) Flowers are trimerous
(B) Perennial growth
(C) Leaf shows reticulate venation
(D) Tap root system
Correct Answer: [A] Flowers are trimerous.
162. The total mass of all the organisms of given type and/or in a given area is called
(A) Biomarker
(B) Biosensor
(C) Biome
(D) Biomass
(A) Biomarker
(B) Biosensor
(C) Biome
(D) Biomass
Correct Answer: [D] Biomass.
163. Kranz anatomy states that the plant has
(A) C2 cycle
(B) C3 cycle
(C) C4 cycle
(D) Both C3 and C4 cycle
(A) C2 cycle
(B) C3 cycle
(C) C4 cycle
(D) Both C3 and C4 cycle
Correct Answer: [C] C4 cycle.
164. Name one rootless plant.
(A) Monochoria
(B) Pistia
(C) Ceratophyllum
(D) Eichhornia
(A) Monochoria
(B) Pistia
(C) Ceratophyllum
(D) Eichhornia
Correct Answer: [B] Pistia.
165. The portion of the carapace which covers the gill of prawn is known as
(A) Branchiostegite
(B) Branchiostegal spine
(C) Bronchus
(D) Branchiostegal membrane
(A) Branchiostegite
(B) Branchiostegal spine
(C) Bronchus
(D) Branchiostegal membrane
Correct Answer: [D] Branchiostegal membrane.
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